Jacking apparatus



' Nov. 26, 1940. J. .COLETTI 2,223,246

JACKING APPARATUS Filed May 20, 1940 2 Sheets-Sheet l Jose viz (70 ZeZii NovQZG, 1940. J. COLETTI JACKING APPARATUS Filed May 20, 1940 2Sheets-Sheet 2 Patented Nov. 26, 1940 UNITED;- STATES PATENT OFFICE2,223,246 JACKING APFARATUS Joseph Coletti, Norwich, Conn. Application aan, 1940, Serial No. 336,257

' 7 claim (c1. 254 ss)" This invention relates to a jackingapparatusdesigned primarily for use in connection with rear of the body of thecar and capable of, being.

driven from the engine of the automobile for 15 elevating and loweringthe car at its front and rear and for jacking up the automobile after ithas been lifted to thedesired extent. v

The inventionfurther aims to provide, in a manner as hereinafter setforth, a jacking appa- 20 ratus for the front and rear of an automobileand operated fromthe engine of the latter and conveniently controlledfrom the interior of the vehicle.

Theinvention furtheraims to provide, in a 25 manner as hereinafter setforth, a jacking apparatus for the purposareferred to which iscomparatively simple ,in its .construction, strong, durable, compact,readily installed with respect to an automobile and carried bythe1atter, thorv 30 oughly efi'icient in its uses, expeditiouslycontrolled-for car lifting and lowering purposes, and comparativelyinexpensive to manufacture.

Embodying the aims aforesaid and others which may hereinafter appear,the invention 35 consists of the novel construction, combination andarrangement of parts as will be morespec'ifically described andillustrated in the drawings, wherein is shown anembodiment of theinvention, but it is to be understood, that changes,

40 variations and modifications may be resorted to which fall within thescope of the invention as claimed.

In the drawings: Figure 1 is a top plan view illustrating in full 45lines the chassis, front and rear axles, front and rear wheels and theengine of anautomobile; in dotted lines the front seat of the vehicle,and in full lines the jacking apparatusinaccordance with this inventioninstalled with respect to said 50 chassis and engine. The chassis andthe apparatus are broken away, i

Figure 2 is a vertical section on line 2-2 Figure 1 upon an enlargedscale,

Figure '3 is a vertical section on line-3-3 Fig- 55 ure 1 upon anenlarged scale, a

l and the front seat at H.

which extends the worm 2| on shank 20.

Figure 4. is a sectional-plan on line 4-4 Figure 3, automobiles, but itis to, be understood that an t Figure 5 is a. fragmentary viewin sideelevation of the shifter device for the controller for the forwardjacking mechanism, and Figure 6 is a vertical section'on line 6-6Figure 1. c 2

With reference to the drawings, I generally indicates the vehicleschassis which includes side bars 2, 3and front and rear cross bars 4,, 5re- 10 spectively. The front and rear axles of the vehicle aredesignated 6, 1 respectively; the front and rear wheels at 8,Qrespectively; the engine at The forward part of chassis side bar 3 hassecured theretoan inwardly extending arm l2"fora purpose to be referred,to. The shaft and fly wheel of the engine are designated [3, Mrespectively. The shaft 13 extends forwardly, of the engine and has.attachedto said forwardend a friction gear I5 of less diameter than thefly wheel. t I

The apparatus includes a rearwardly arranged section including a rearjacking mechanism l6 for elevating and lowering the back of theautomobile, anda forwardly arranged section including a frontjackingmechanism H for elevating and lowering the front of, the automobile. Thefly wheel provides an operator for the mechanism I6, and the frictiongear l5 constitutes an operator'for the mechanism ll. a

The mechanism 5 inoludesa vertically adjustable oppositely revolubleone-piece jack member l8 formed of an enlarged foot piece l9 and anupwardly extending shank 20 of circular cross section. There-is a balland socket joint 20 between foot piece [9 and shank 2B. The shank 20 isprovided intermediate its ends with a worm 2|, audit is also formed with.a groove 22 extending from'its upper end, through the worm andterminating at the lower end ofthe latter. 40 The shank 20 atitsupperend diametrically opposite the upper end of the groove 22 is tohave attached "thereto, after the jack member I8 is arranged relative tothe parts of the mechaback of the automobile an oppositely revolublehorizontally disposed worm gear 24- through The gear 24 has its hubindicated at 25, itsweb at 26 and its teeth 21, which are on the outeredge of the web 26. The latter is of less thickness the correlation ofthe worm gear with jack member it, it will provide for the elevating ofthe back of the automobile and on discontinuance of the operation ofpinion 58 the backof the automobile Will be held in its elevatedposition. When pinion 55 is shifted to engage fly wheel M, after theback of the automobile has been elevated, the worm it will be driven dueto the connection between said worm 43 and pinion 54, the worm 453 willoperate the worm gear of mechanism It in the opposite direction and dueto the correlation of said worm gear with the jack member !8, it willprovide for the lowering of the back of the automobile.

When pinion "H is shifted to engage the gear 15, during the operation ofthe engine the worm ll of mechanism I! will be driven due to theconnection between said worm and pinion ll, the worm II will thenoperate the worm gear of mechanism I! in a clockwise direction and dueto the correlation of the worm gear with jack member 69 it will providefor the elevating of the front of the automobile and on discontinuanceof the operation of the pinion 11 the front of the automobile will beheld in its elevated position. When pinion 16 is shifted to engage gearl5, after the front of the automobile has been elevated, the worm M willbe driven due to the connection between such worm and pinion Hi, theworm 16 will then operate the worm gear of mechanism I'l in the oppositedirection and due to the correlation between the worm gear with jackmember 69 it will provide for the lowering of the front of theautomobile.

When the automobile is in operation on the road the pinions or gears 55,58, I6 and H are releasably held in neutral position.

As the worm of each jack member is of less length than and disposedintermediate the ends of the shank a smooth or reduced portion isarranged above and below the worm and when the latter is clear of thethreads of the hub of the worm gear the lifting or lowering actionapplied to the automobile is discontinued.

The ball and socket connection between the foot piece l9 and the shank28 provides a swivel to thereby permit of the jack to be used on a gradeso that the connection will not be rigid and break.

What I claim is:

1. A jacking apparatus carried by and for the front of an automotivevehicle comprising in combination, a vehicles engine shaft provided witha drive gear at its forward end, an oppositely operable front jackingmechanism for and secured to the front of the vehicle, a normallyinactive pair of selectively operable front power transmitting devicescapable of being operated from said gear and operatively connected withsaid front mechanism for driving the latter, a shiftable frontcontroller common to and for selectively shifting said front devices toengage with and to be operated from said gear, and universal jointconnections between said front power transmitting devices and said frontjacking mechanism.

2. A jacking apparatus carried by and for the rear of an automotivevehicle comprising in comsaid devices to engage with and to be operatedfrom said fly wheel, and universal joint connections between said rearpower transmitting devices and said rear jacking mechanism.

3. In a jacking apparatus for and adapted to be carried by an automotivevehicle, in combination, the vehicles engine, a cross bar of the chassisof the vehicle, a jacking mechanism secured upon said cross barincluding a vertically movable lengthwise grooved jack member, a wormgear mounted about and having threaded engagement with said jack, a pairof worms located on opposite sides of and engaged with the teeth of thegear for revolving the latter to provide for selectively moving saidmember in opposite directions, a fixed key slidable in said groove, anda controlling means operated from the engine of the vehicle forselectively operating said Worms.

4. The invention as set forth by claim 1 having combined therewith alever forshifting said controller in opposite directions.

5. The invention as set forth by claim 2 having combined therewith alever for shifting said controller in opposite directions.

6. A jacking apparatus for mounting on a vehicle and operated by theengine of the latter, comprising a jack screw, a horizontally rotatableworm gear threadably engaging said screw, a pair of diametricallyopposed worms meshing with said worm gear, a pair of worm operatingshafts, means disposed adjacent the ends of said shafts opposite fromsaid worms for holding said shafts in spaced apart relation and ondiametrically opposite sides of a rotatable part of the engineconstituting a jack drive member, a driven member carried by the saidopposite end of each shaft, and means for shifting said shaft holdingmeans to thereby effect engagement of a selected driven member with saiddrive member for rotating a selected shaft in the desired direction.

'7. A jacking apparatus for mounting on an automotive vehicle and foroperating from the engine of the vehicle, said apparatus including ajack screw, a horizontally rotatable worm gear threadedly engaging withsaid screw, a pair of normally inactive diametrically opposed worms forselectively meshing with said worm gear for rotating the latter tovertically move said screw, a pair of normally inactive oppositelyrevoluble shafts for selectively operating said worms, a normallyinactive driving means for and universally connected to each shaft, acontroller

